 
Version 4.2.1 brings several changes:

* Statistics moved to the drawer
* tuned down color of player controller
* Subscriptions menu adjustment
* Subscriptions filter is disabled for now
* more null safety tuning
* fixed the refresh bug related to permissions
* long-press operation has changed
	* long-press on title area would be the same as a click
	* click on an icon allows operation on the single item
	* long-press on an icon would allow for multi-select
